Snap-switch.



PATENTE JULY 9, 19o-7.

WITNESSES:

` alter the controller.

parts of the device which extend therethrough.

plate I4. I ortions 1 5 ofthe a 'UNITED srarnsma'rnnir ont WALTER S. MA YER, Ol." PHILADELPHIA, PENN MAYER ELECTRICAL MANUFACTURING A CORPORATION OF NEW JERSEY.

COMPANY, OF

THE MACHEN & PHILADELPHIA., FENNSY'LVANIA,

SYLVANIA, ASSIGNOR TOv SNAP-SWITCH.

specification of Letters Patent Patented .my o, iso?.

Application filed April 4,1'907. Serial NotSSBAOl.

switches, designed to make and break electric circuits. and its object is to provide a device of this charsh actor which is simple in construction, and which is t effective for the purpose for which it is designed` A convenient embodiment .of my invention is illustrated in the accompanying drawings, but it is to be understood that changes in thel details of construction, which are .within the scope of the claims, may be made without departing from my invention,- and in-order that the saine may be more readily understood, reference. is to be had to the accompanying drawings, lin which,

Figure I is a top plan view ofathe de a transverse section thereof; Fig. III is a top plan view of certain of the operative parts of the device, other parts thereof being omitted; Fig. IV is a plan view of acplate constituting a contact member; Fig. Vis a top plan view oi' ya part termed hereinafter the shifter; and lf' VI is a top plan view of a part termed hereinsh vice; Fig. II is th is In the drawings,-1 designates a base of suitable insulating material, as, foi# instance, porcelain, which is provided with a depression 2 for the reception of eertain of the operative parts of the device to be hereinafter referred to in detail.

'3 designates binding posts secured to the base vof in'- sulating material to which the Contact springs or brushes 4 are cnonnected, and 5 designates the ends of line wires which extend through openings 6 in the base I and are connected to the binding posts by'preans of headed screws 7. Connection' between the contact v springs or brushes 4 is made. by means of a contact Inember`8,l the opposite ends of which are adapted to contact with .the Contact springs or brushes 4. Thelnember 8 is provided with a relatively large openingA l0 at its central portion through which the revoluble shaft 12 extends. The opening 10 should be; large enough to prevent its edges trom contaeting'with the of sh ta The `pontact member 8 is connected to a shifter consisting of the arms 13 which are connected to an oblong rms ,entend transversely of the plate 14 and the remaining portions oi the arms and constitute what may be termed shoulders. The

contact member 8 is connected tothe arms 13 by means lll Sil

from the screws and from the bushing 17 of suitable insulati the latter extending t spring 4coiled. around a sleeve 12 and the lower end of the said spring is ad engage or Contact with some part ofthe shifter, as, for

the relatively stationary while the lower end there with a portion of the shifter, it is e button 23, upon the outer end thereof be carried around with the shaft unde the energizing spring 20. fore, to providemeans lever is pivoted to a bar or pla a hole throughwhich the shaft 12 passes. essary,` however, that the s a plate, as, obviously, base 1.

ver on opposite sides of its pivot is gre opposite ends ol' the said lever are pro wardly extending projections 30 a adapted to be brought alternately into tl adapted to engage the inside of the outside of the projection 31. sioning movement of the ends of its pivot, I have provided cam acting projecting with the inside of'th -the projection 30. shoulders 37 with th portions 32 screws 16, thesaid contact member being separated ng material.

y supported upon the shaft 12, hrough a hole I8 in the oblong The shifter is rotatabl ate 14.

20 designates an energizing member consisting of a. or bushing 21 upon the aft 12. The upper end of this ei'iergizer is connected a relatively stationary collar 22 secured to the shaft apt-ed to stance, one of the portions l of the arms, as illustrated in Fig. III of the drawings.

The energizer being connected at its upper end to collar 22 upon the .shaft 12, of is in engagement or Contact vident that if thev as for instance the the shifter would r the influence of It becomes necessary, thereto act as a stop to interrupt the ntinuity of the movement oi the said shifter` For aft 12 were turned by any means,

at purpose, I have provided an angular lever 25 which pivoted at its angle. In the construction shown', this te 2t; which is connected late being provided "wi th It is not necv aid lever 25 he pivotcd uponv it may be pivoted directly to the The angle between the portions of the said leaterthan 90, for explained. The

thebase I, the said bar or p purpose whichf'will be hereinafter ie lineor path movement oi the outer ends of the portion 14 of the iltcr and are adapted to contactwitl ntact portions 32 thereof, the said shoulders being the-projection and As a means for occa` the said lever about a controller 35 which has portions 36 and shoulders or con- The latter are adapted to Contact e projection 31 and the outside of The contact or engagement of the e respective projections 30 and 31v is time that the shoulders or Contact oi the shifter are in engagement with thc me projection, such projection being located intel'- eting portions 37'.

ade at the same said varms by means of a vided with downnd 31 which are t the shoulders or y' positions indicated in Fig. loi the drawings, the shaft 12 is rotated, the energizing spring 20 is placed under tensionby reason oi the fact that its upper end is carried 'around with the shaft .While the lower end is held against-movem'ent,byA reason of its contact or engagevso ' ject-ion Si.

lthe vsa id shifter.

tion, n rcvolnbly supportedshi ment with the shifter which ,is held against movement vbecause one' of the contact portions 32 ofthe shifter 14 is in engagement with the Yinside oi the projection 30V :upon the angular levers 25. Such rotation of the shalt l2 occasionsmovement of the controller 35 to bring one of the cam projections SGVinto engagement with the projeciion 30 and oocasion its outward movement to disengage the same from the shifter 14. By this time the energizer has been placed u'nder considerable tension, in consequence of which the shifter 1 4 is moved rapidly under the influence of the said energizer, until the opposite end thereof is brought into contact with the out-- side of the projection 31, as indicated in Fig. III ol the drawings, which was moved inwardlv at the same time that the projection 30 was moved outwardly.

By reason of the fact that the angle between the por` tions of the lever 25 on opposite sides o f its pivot'is obtuse, When-one oi its ends is moved into the path of travel of the shift-cr, the other end will at the saine time move outwardly beyond the path of Ytravel of the same. Reverse movement ot' the controller and ol the shaft 12 under theinuence oi the energizing spring 20 or other force is prevented by reason of the tact that when the several parts are in the relative positions indicated in Fig. I, one ofthe Contact shoulders 37 is in'contact with the loutside of the projection 30, while in the relative positions of the parts as indicated in Fig.' lll, one of the said shoulders is in contact with the inside of the pro-f It Will thus be seen that the shaft 12 and the controller 35 can move in one direction only, which is to the right, as in the case oi the hands of a watch. It is to behoted thatithe shifter andk'onscquently the Contact ember 8 makes substantially a quarter turn at each nio ement.

Having thus described my inventiou I claim:-

1. In a device of the character described. in combination. Contact brushes. a Contact member adapted to contact with the said brushes. a revolubly supported shifter 'operatively connected to the said contact member, meansI for supporting thc said shifter, movable means located to on(` side of the pivotal point of the said shifter :1nd adapted. to be engaged by the said shifter. and a controller operatively revoluble in a continuous circuit and being adaptedto occasion movement of'the said means.

2. In a device of the character described, in combination, a revolubly supported shifter. :i contact member operatively connected to the said shifter, means for occitsioning novement of the said shifter. u movable device located Lo'one side of the pivotal `point of. the said shifter. the said devicebeini,T adapted to iiefmoved in to the path o f travel of the Shifter, and a controller operatively revoluble in a continuous circuit and being,r adapted to occa sion movement' of the said device io permit movementof 3. in a device of the cliilract" described, in combinaa Contact member op` erativelvconnected to the said shifter, moans for occasio'rri'ng movement of the said shifter, an angular lever pivotcd someY distance to oneside of the pivotal point of' the said shifter, a revoluble controller adapted to engage yportions of the said lever and occasion movement of the a portion thereof adapted to be moved into the path of Vtravel of the'said shifter, and a device supported upon Vthe said 'shaftv andA revolving therewith, the said device .being adapted to :occasion outward movement of the portion of the said lever wliic'l`is"in'tlie path of travel of the saidw shifter.

5. In :i device p tion. a revoluble shaft, a shifter rotatably supported upon the said shaft, a contact member operatively connected t0 of the character.described, in combina-- rho said shifter, an enei'n'izor connected to the said shaft i and being,j in operatively relation to .the said shifter. a

-levcr pivoted intermediate its ends and located to one side of the said shaft. the opposite end portions of which lever are angnlixrly related to each other, a controller supported upon the said shaft and revolving therewith, the said conf troller being adapted to engage the said lever successively on opposite sdes-of its pivot to occasion' movement of .its

opposite ends alternately into the path of travel of the outer ond portions of the said shifter.

(i.y in a device of the character described, in combination, a shaft, a shifter pivotally supported upon the said shaft, a contact member operatively connected tothe Said shifter, an energizingy spring connected to" the said shaft, and beingl in engagement or contact with a portion of the said shifter. an angular lever being' located to oneside of the said s aft,v the said lever being pivot-,ed at its'angle, a lcontroller havingy cam acting projections which are adapted to engage the said lever and occasion alternate movement of the #opposite ends thereof into and out of the path of travel of the said shifter, and the said controller beingprovidod with shoulders which are adapted to engage portions of the opposite ends ot' the said lever whereby reverse movement of the controller' is prevented.

7. in a device of the character described, in combination, a shaft, a shifter movably supported upon the said shaft, a contact member operatively connected to the said shifter, an energizing spring .connected at one end to the said shaft, and having its other. ond iii contact with the said shifter to`occasion movement thereof, an angular lover pivoted at its angle and located to one side of the said shaft, the `angle between the portions of the said lever on opposite sides of its pivot being greater than ninety degrees, and the saidlever being provided with projections at its opposite ends, which projections are adapted to be moved into the path of travel of the outer ends of the said shifter and to be engaged thereby, a controller supported upon the shaft and adapted to move there with, the said controller being provided with cam projec tions which are adapted to engage with the ond portion ol the said lever which is nearest to the said shaft and which is in -engagement with one of the ends of the said shifter to occasion outward movement thereof. and the said controller being provided with shoulders which are Vadapted to engage the said projections. whereby reverse movement of the said controller and the said shaft is'prevented.

8. The combination of arevoluble shaft., a shifter sup-` adapted to be movedinto and oi: of the path of move-.l

ment of the said shifter, a controller secured to the said shnft and revolving therewith, the said` controller having um acting projections which :1re adapted to engage the said lever und urcasion movement of portions thereof upon opposite sides of its pivot into und out of the path of movement of the said shifter, the said controller being revoluhle in :t continuous circuit'.

5). The combination ot a shaft, a shifter supported upon the said shaft and adapted to have a movement of rotation with respect thereto. a Contact operatively connected to the said shifter, un energizer adnptedfco occasion movemont nf the smid shifter` :1 lever pivoted a distance Vto one side of the said shft, portions of the said lever being adapted to hc moved into :1nd out of the path of movement ofthe said shifter, a` controller secured to the saidl shaft and being adapted to engage the said lever upon opposite sides of its pivot to occasion movement of different portions of the said lever into the path of movement of the said shifter, the said controller having a movement of rotation in n continuous circuit.

In testimony that I claim the foregoing as my invention, I- have hereunio signed my name this 2nd -day of April, A. D. 190'7.

` WALTER S. MAYER.

In the presence of- IRvIN SHUPP, J r., CYRUs "Nt ANDERSON. 

